Warnings On The Device - Samson TROVIS 3730-3 Mounting And Operating Instructions

Safety instructions and measures
Equipment with type of protection Ex nA
Î In equipment operated with type of protection Ex nA (non-sparking equipment), only con-
nect, isolate or switch circuits while energized during installation, maintenance or repair.
Î Use certified cable glands and blanking plugs with appropriate type of protection and
IP rating ≥ 6X and suitable for the certified temperature range.
Î Connect the signal circuit using screw terminals (terminal 11/12) for electrical conductors
with a wire cross-section from 0.2 to 2.5 mm². The tightening torque is 0.5 to 0.6 Nm.
Equipment with type of protection Ex t
Î In equipment operated with type of protection Ex t (protection by enclosure), only con-
nect, isolate or switch circuits while energized during installation, maintenance or repair.
Î While working on the device during operation in potentially explosive dust atmospheres,
be aware that opening the housing cover may cause the explosion protection to become
ineffective.
Î Use certified cable glands and blanking plugs with appropriate type of protection and
IP rating ≥ 6X and suitable for the certified temperature range.
Î To connect the signal circuit, use screw terminals (terminal 11/12) for electrical conduc-
tors with a wire cross-section from 0.2 to 2.5 mm². The tightening torque is 0.5 to
0.6 Nm.

1.5 Warnings on the device

Warning
6
Meaning of the warning
Warning against sudden loud noise
The positioner mounted onto the control valve can cause the pneumatic actu-
ator to vent. A loud noise may occur during venting. This can cause hearing
damage.
EB 8484-3 EN